Determining the electrical mechanism of the surface resistivity property of doped polyvinyl alcohol (PVA) and the pyroelectric property of polyvinylidene difluoride (PVDF) thin films

2015 ◽  
Author(s):  
Matthew Edwards ◽  
Afef Janen ◽  
Padmaja Guggilla ◽  
Jemelia Polius ◽  
Jade Douglas ◽  
...  
Keyword(s):  
Thin Films ◽  
Polyvinyl Alcohol ◽  
Surface Resistivity ◽  
Pyroelectric Property ◽  
Polyvinylidene Difluoride

Improved Spray-Pyrolysis Deposition System for Polycrystalline Conductive SnO2 Thin Films

1995 ◽  
Vol 403 ◽  
Author(s):  
V. Foglietti ◽  
A. Galbato ◽  
A. Bearzotti ◽  
A. Galloppa ◽  
P. Maltese
Keyword(s):  
Thin Films ◽  
Spray Pyrolysis ◽  
Deposition Temperature ◽  
Liquid Crystal Display ◽  
Surface Resistivity ◽  
Deposition Chamber ◽  
Spray Pyrolysis Deposition ◽  
Temperature Ranges ◽  
Improved Spray Pyrolysis ◽  
Icp Mass Spectrometry

AbstractBismuth-doped tin oxide films have been deposited using a new spray-pyrolysis deposition system. Among the properties are the possibility of depositing thin films over very large areas with good uniformity and the relatively small cost compared with other types of deposition systems. The apparatus is divided in two major parts, the aerosol chamber and the deposition chamber. The deposition chamber consists of a flat rotating hot plate that can house substrates up to 18 cm in diameter. Deposition temperature ranges from 290 °C to 350 °C. The SEM pictures show a phase transition from amorphous to polycrystalline which also strongly affects the transport properties of the film. The high values of the surface resistivity obtained are consistent with those ones required to develop an analog grey scale ferroelectric liquid crystal display. The sample shows a 20% uniformity in the value of surface resistivity over an area of 140 cm2, and the results obtained until now show a satisfactory reproducibility. Bismuth and Tin concentration versus deposition temperature have been determined by ICP mass spectrometry. Our work is supported by the ESPRIT project “PROFELICITA”.

scholarly journals Excited-State Dynamics of Quinine Sulfate and Its Di-Cation Doped in Polyvinyl Alcohol Thin Films Near Silver Nanostructure Islands

ACS Omega ◽  
2019 ◽  
Vol 4 (3) ◽  
pp. 5509-5516 ◽  
Author(s):  
Swatantra Kumar Yadav ◽  
Gopal Rawat ◽  
Sandeep Pokharia ◽  
Satyabrata Jit ◽  
Hirdyesh Mishra
Keyword(s):  
Thin Films ◽  
Excited State ◽  
Polyvinyl Alcohol ◽  
Quinine Sulfate ◽  
Excited State Dynamics ◽  
Silver Nanostructure

scholarly journals Sandwich-structured starch-grafted polyethylhexylacrylate/polyvinyl alcohol thin films

2018 ◽  
Vol 37 (8) ◽  
pp. 3779-3791 ◽  
Author(s):  
Kalyani Prusty ◽  
Pramod K. Sethy ◽  
Sarat K. Swain
Keyword(s):  
Thin Films ◽  
Polyvinyl Alcohol
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